G'day, I can create your app with the 3 first options easily in C# mono and test it in my raspberry (with mouse, because I don't have a touch screen, but it should be the same).
The 4th button needs more information, because how do you will entry the paths with only a touchscreen?
In any case, my bid is for about 2 hours creating the app, 1 hour testing and sending you a video and about extra hour helping you to set up there (following my instructions).